| 2007–present |
Co-Founder and CEO, Marzano Research Laboratory / Executive Director of REL Central |
| 2001-2007 |
President & Founder, Marzano & Associates / Senior Scholar, McREL / Associate Professor, Cardinal Stritch University |
| 1998–2001 |
Senior Fellow, Mid-continent Research for Education and Learning |
| 1994–1998 |
Vice President, McREL Institute |
| 1989–1994 |
Deputy Director of Training and Development, Mid-continent Regional Educational Laboratory |
| 1983–1989 |
Director of Research, Mid-continent Regional Educational Laboratory (full-time) |
| 1981–1983 |
Director of Research, Mid-continent Regional Educational Laboratory (On leave from University of Colorado at Denver) |
| 1978–1981 |
Associate Professor, University of Colorado Denver |
| 1974–1977 |
Assistant Professor, Reading, Language Arts, Research Methodology, University of Colorado, Denver |
| 1972–1974 |
Triple T Project Participant, University of Washington |
| 1969–1971 |
English Department Chairman, O'Dea High School, Seattle, Washington |
| 1967–1968 |
English Teacher, New York Public Schools |